/*
 * Copyright (c) 2011 Imre Fazekas.
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the Brillien nor the names of its
 * terms and concepts may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package com.vii.streamline.json;

import org.svenson.JSONProperty;

/**
 * Describes a response message according to the JSON-RPC 2.0 standard
 */
public class JsonRpcResponse<P, T> {

    private String          jsonrpc;
    private JsonRpcError    error;
    private P               result;
    private T               id;

    {
        jsonrpc = JsonRpcServices.JSON_RPC_VERSION;
    }

    public static <P> JsonRpcResponse createResponse( JsonRpcRequest request, P result ){
        return createResponse( request, result, 0, null, null );
    }
    public static JsonRpcResponse createResponse( JsonRpcRequest request, int code, String message ){
        return createResponse( request, null, code, message, null );
    }
    public static JsonRpcResponse createResponse( JsonRpcRequest request, int code, String message, Object data ){
        return createResponse( request, null, code, message, data );
    }
    public static <P> JsonRpcResponse createResponse( JsonRpcRequest request, P result, int code, String message, Object data ){
        JsonRpcResponse response = new JsonRpcResponse();

        if( request != null )
            response.setId( request.getId() );

        if( result != null )
            response.setResult( result );

        if( code !=0 )
            response.setError( new JsonRpcError( code, message, data ) );

        return response;
    }
    
    public JsonRpcResponse() {
    }

    public JsonRpcResponse(String jsonrpc, JsonRpcError error, P result, T id) {
        this.jsonrpc = jsonrpc;
        this.error = error;
        this.result = result;
        this.id = id;
    }

    public String getJsonrpc() {
        return jsonrpc;
    }

    public void setJsonrpc(String jsonrpc) {
        this.jsonrpc = jsonrpc;
    }

    @JSONProperty(ignoreIfNull = true)
    public JsonRpcError getError() {
        return error;
    }

    public void setError(JsonRpcError error) {
        this.error = error;
    }

    @JSONProperty(ignoreIfNull = true)
    public P getResult() {
        return result;
    }

    public void setResult(P result) {
        this.result = result;
    }

    public T getId() {
        return id;
    }

    public void setId(T id) {
        this.id = id;
    }

    @Override
    public String toString() {
        return "JsonRpcResponse{" +
                "jsonrpc='" + jsonrpc + '\'' +
                ", error=" + error +
                ", result=" + result +
                ", id=" + id +
                '}';
    }

}
